Combination Particle + Carbon Replacement filter designed to fit for Blue Pure 411+, 411, 411 Auto and MINI air purifiers 2-in-1 filtration system: Advanced Particle filter captures up to 99.97% of particles as small as 0.3 Micrometres in size from the air passing through the filter. Activated carbon traps odors, smoke, VOC, etc. Fine preliminary Filter traps larger particles in the air like dust, hairs, pet fur, lint and more air again: perfect replacement filters for anyone who for a comfortable environment with fresh, clean and healthy air Easy to Maintain: These replacement air filters can washable and reusable, It is suggested to replace the replacement parts every 6-12 months or depend on the use, To keep your air purifier working with high-performance. Colour:White Material:composite material Size: 290 x 200MM Package Contents: 2 x Air Purifier Filters 1 x Cleaning Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.